6641012523 has 8 divisors (see below), whose sum is σ = 8896649536. Its totient is φ = 4406358600.

The previous prime is 6641012513. The next prime is 6641012561. The reversal of 6641012523 is 3252101466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6641012523 - 2⁴ = 6641012507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6641012503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5245033 + ... + 5246298.

It is an arithmetic number, because the mean of its divisors is an integer number (1112081192).

Almost surely, 2^6641012523 is an apocalyptic number.

6641012523 is a deficient number, since it is larger than the sum of its proper divisors (2255637013).

6641012523 is a wasteful number, since it uses less digits than its factorization.

6641012523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10491545.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 6641012523 is about 81492.4077629321. The cubic root of 6641012523 is about 1879.6548071327.

Adding to 6641012523 its reverse (3252101466), we get a palindrome (9893113989).

The spelling of 6641012523 in words is "six billion, six hundred forty-one million, twelve thousand, five hundred twenty-three".